Shangdian Zhu, He Zhang, Xiaohui Ma, Xin Zhao, Yang Li, Weiyan Li. Design of Fiber Coupling System for High Brightness Semiconductor Laser Pump Source[J]. Laser & Optoelectronics Progress, 2023, 60(15): 1522002
- Laser & Optoelectronics Progress
- Vol. 60, Issue 15, 1522002 (2023)
Fig. 1. Integral mechanical structure encapsulated optical system
Fig. 2. Quasi divergence angles of fast and slow axis and light spot after collimation
Fig. 3. Diagram of fast and slow axis collimation optical path system. (a) Fast axis collimation of single bar; (b) slow axis collimation of single bar
Fig. 4. Physical structure of similar stepped prism
Fig. 5. Optical path system diagram of light beam passing through stepped prism
Fig. 6. Light beam is refracted through two 30°rectangular prisms to fill dark region of fast axis
Fig. 7. Diagram of (a) structure and (b) principle of polarization beam combiner
Fig. 8. Optical path system diagram of compressing beam width of slow axis by polarization beam combiner
Fig. 9. Optical path system diagram of decreasing divergence angle of slow axis by beam expansion system
Fig. 10. NA values of focus spot in fast and slow axis
Fig. 11. Diagram of overall fiber coupling system and fiber output light spot
Fig. 12. Energy loss analysis in fiber coupling process
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Table 1. Parameters of mini-bar
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Table 2. Parameters of fast and slow axis collimating lens
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